8
Power Exhaust Hood —
Power exhaust hood kit Part
Numbers are as follows: CRPWREXH014A00 (3 to 6 Ton
Unit), CRPWREXH015A00 (for a 7
1
/
2
to 12
1
/
2
Ton Unit),
CRPWREXH016A01, and CRPWREXH017A01 (both in-
clude a vertical EconoMi$er Assembly). Refer to Fig. 23-30
for power exhaust assembly and installation.
Power Exhaust Assembly Kit Contents:
1 — Power Exhaust Hood Top
1 — Power Exhaust Hood Bottom
2 — Power Exhaust Hood Sides
1 — Power Exhaust Fan Divider Plate
1 — Damper Block-Off Plate with 2 x 4 in. Junction Box
2 — Power Exhaust Hood Braces
1 — Power Exhaust Hood Screen
1 — Power Exhaust Fan Assembly
4 — U-Clips
40 —
5
/
8
in. No. 10 Sheet Metal Screws
1 — Seal Strip —
1
/
8
x
7
/
8
in.
1 — Seal Strip —
3
/
4
x
3
/
4
in.
NOTE: The Power Exhaust Hood installation is the same
procedure for both a vertical and horizontal EconoMi$er.
(See Table 2 for Power Exhaust Power Requirements.)
Table 2 — Power Requirements
If installing the Power Exhaust Assembly as a retrofit to an
existing vertical or horizontal EconoMi$er or as a new installa-
tion, proceed as follows:
1. Remove the OA panel and hood assembly from the
rooftop. Discard panel if the EconoMi$er was not fac-
tory installed.
2. Remove the lower exhaust hood from the hood assem-
bly by removing the top, sides, and bottom panels.
(See Fig. 14 and 16.) Discard the lower exhaust hood
panels.
3. Remove the OA block-off plate located adjacent to the
EconoMi$er damper, and discard it. (See Fig. 18.)
To assemble the power exhaust hood:
1. Install the
3
/
4
x
3
/
4
in. seal strip on the top panel of the
power exhaust hood. Install the
1
/
8
x
7
/
8
in. seal strip on
the power exhaust hood side panels and bottom panel.
Assemble the power exhaust side panels, then bottom
panel as shown in Fig. 23.
2. Attach the hood top panel to the side panels.
3. Skip Step 4 if this is a retrofit installation.
4. Assemble the OA side panels, then top panel, to the
OA panel. (See Fig. 24.)
5. Slide the OA inlet screens into the screen track on the
hood side panels. While holding the screens in place,
fasten the screen retainer to the hood. (See Fig. 24.)
6. Attach the exhaust hood side braces to the power
exhaust side panels and OA hood top. (See Fig. 25.)
POWER
EXHAUST
SIZE
TOTAL AMPS
MOCP
230 V
460 V
575 V
3 to 6 Ton
1.40 @ 60 Hz
15.0
15.0
15.0
7
1
/
2
to 12
1
/
2
Ton
3.04 @ 60 Hz
MOCP —
Maximum Overcurrent Protection
IMPORTANT: Motors are rated for 230 VAC,
1 Phase, and 50/60 Hz. For 460 VAC applications,
use an HT01AH850 transformer. For 575 VAC appli-
cations, use a HT01AH859 transformer.
OUTDOOR
AIR PANEL
POWER EXHAUST
HOOD TOP
POWER EXHAUST
HOOD SCREEN
POWER EXHAUST
FAN ASSEMBLY
POWER
EXHAUST
HOOD SIDES
SIDE BRACE
EXHAUST FAN
DIVIDER PANEL
3/4 x 3/4 IN.
SEAL STRIP
1/8 x 7/8 IN.
SEALSTRIP
OUTDOOR AIR
HOOD TOP
SCREEN
RETAINER
OUTDOOR AIR
INLET SCREENS
SIDE BRACE
OUTDOOR
AIR PANEL
1/8 x 7/8 IN.
SEAL STRIP
ASSEMBLED
POWER
EXHAUST
HOOD
OUTDOOR AIR
HOOD SIDES
1/8 x 7/8 IN.
SEAL STRIP
OUTDOOR AIR
HOOD TOP
POWER EXHAUST
SIDE PANELS
SIDE BRACE
Fig. 23 — Power Exhaust Hood Assembly
Fig. 24 — Outdoor Air Hood Assembly
with Power Exhaust Assembly
Fig. 25 — Completed Hood Assembly
with Power Exhaust
